Scouring and like roll



J. H. FRANKLIN SCOURING AND LIKE ROLL July 26, i949.

3 Sheets-Sheet l Filed May 6, 1948 July 25 1949 J. Hi FRANKLIN 2,4??243 scoURING AND LIKE ROLL v Filed May 6, 1948 V 5 Sheets-Sheet 2 nUenlor July 26, 1949. J. H. FRANKLIN 2,477,243

scoURING AND LIKE ROLL' Filed May 6, 1948 '3 Sheets-Sheet 3 Patented July 26z 1949 j "N'ITD animee er Y soin'mo AnLniE noir; Hugh Franklin, Rusliaen', England; assigner to vFreni Hawkes (N. VzfEngineersj Limited, Rushden; Eng-latini,Y a British company liooiieajiieii o, ioigsiial No; fitner IIiGritt Britain My2151947 l 1 `"This invention relates follsz of the ki-nd adapted tio-be' seured'upon the rotary snaftsof appropriate machines ano` to be fitted, periphL orally,- with bands of abrasive material suon as' 'Sand ppel .0'1 fine nly cth, ferli orother suit-Y aioie nbrous materiafwiretasle, 'and so on,v for the perforr'xinoef scouring, polishing,V bun'g ano-*analogous niiishingf ooe-ratione upon' aV variety of classes of work.-

' Inv this' connection 'the invention is intended for application primarily heel and solev scouring .rollseuh as ar ""innioniy iiseoin one 'linienfn'gs'tag'e's ofthem nuaetiireof bootsf and sho's. The invention; riioreovnfhas reierenoe' prtiiuiai'ly to rolls of thetypei'joinprlisng'two prts which ningenfor rei'anye kinove.v i;

nient fanoV nave assooiata therewith ielasaole raten means' fof looking tneni; together in ine; eiese'o nonnen for' use; 'rliefsaid tino naine are foiined'- erninSleiinint'ayv portions onion;

unen t A e parte Beine 'breng-niane* 'ia-tened toeetnen nib-vine a -eoniinueus `oiienlai adenienjfoi ine Sannois of a eanofof scour-ine or" iike materiel. 1 Releaseof ine leien nenne nenniie oi ine onnos'eoienae fine iwoeerie Being -swunef e i l-aims. (CL

otneroioiiere event; oil vof the type referred* to,v the onneei' nieeesfwnereoyreleesefoftne' laten Could' bereediiyfefreeteoi`- u in piaotiee,' hoever; inane-nfv the partiouiaiinst-'described tenu toibegv dangerous-in usev strineenifeafein regulation@ Tnue, for inetanee, when' usedrer scouring;A nomine" heels-f of jbboief or shoes, there is a possibilit;1 that a botr s iioe' will slip and as' a consequencestrikef'thelateranoropriate'eovei plat e This, naturally,

risks tteinpt havehletofore been inode to enel-ose tine sides of the-ion by ineans;y off oever pinten-'butin this ease it .was necessary to' oper-1 ate ine tiiunib or .finger pieces byinaneof a roo or 'other' tool inserted through' an opening vin'.

provi-'iii to b''troubiso'nle operation.

Tii'e object' of the present invention is the obviag'tin of the foregoing diiculties' by pro"-v vis'ion, a; roll of the type herein referred to; 3i-eil improved laiton ooerritiri'g mechanism Signedi' permit ottotal enolosiiie of the' sides' of the roll, Without dangerousY projections, 31S will be' hereinafter described.. e

Ao'eorciing to 'tnieinvention, instead of nie. movable laten memberl being oireotlf oepressible by the operators thumbs or iin'gers,l as heretooreyitis' adapted to' be acted upon and withdrawn, to Ieffeot release ofthe hinged prt of 'the rolt,` oy ni-'eane 'or a laten actuating member oper# ante' atone side r-oi the'i'oll.

Ina convenien'tel'nbbdilnientoi the invention, one of the latch ineinloers ie mounted for move-z' ment' yslclalloiy' and is directly' engage'i with fa partV .or oi on aV pivoted latch actuating member. whichis operable'by a push-button" dispoeedwat one Side of theroi.

Trie .idea i'stoipiovide a" i'at'eh actuating inertib'er which can loe .readily .moved manually; through openingl ina side' cover,` and yet rei 'main entirely within the Comines of the said' cover-'that' is 'to say, Without lateral projec'ztion'k of .the ae'i-,uai-,ing member at any time from. the' smooth' outer vsurface of" theoover. Asv will` be appreciated?,- moreover, `w'hatever the" constr-uol 'f tion aopted; appropriate movement'o the actu;

aitingmember istrane'ated into the desired 'Inovef--" nient or the movable' laten ineinloer,l to release the latter frein engagement with the tooth-'or teeth of the opposed laten member'.-

A" sp'eeiiio coneiruotibnai' example of the in: vention'apolied to a neel 1eeouring'-roll' will new be" described with reference" to" the' acoompanyi ing-drawings, wherein Figure' aside' view' or the roll as iitappeare when eioeedanuwitn the eine cover plate .rer

2'is'v an end'view of the roll with one '10i the'tvv'oi hinged parte tir'iereo removed and' Witii tifo ioinovablev` side' @over platel broken away the'I lin'eIIL-LII oi Figure" 1 todisclose Hieraan'VA nutten lever' ein-wine si'i'oabie laten member;

niet@ afnioithe screws whereby it is eeeure Like parts are designated by similar reference characters throughout the drawings.

Referring to the drawings it will be seen that the improved heel scouring roll comprises a main body part I and a complementary part 2 which two parts are hinged together at 3. The part I has a substantially semi-circular rim portion 4 and a hub which are connected by an interor Zpaper, before completing thBI- j losure as aforesaid. v 1 if: To enable the slidable latch member I1 to be forcibly depressed manually to effect release of vening integral web 6 constituting aside cover for the roll. The hub 5 extends wholly from the inner face of the side cover 6. The hinged part 2 is also formed with a substantially semi-circular rim portion 1 adapted to complement the rim portion 4 of the part I and thereby provide a virtually continuous circular rim upon the parts being closed and latched together as shown in Figure 1. As in a heel-scouring roll of conventional construction, the appropriate end of the rim portion 4 is bifurcated at 8 to receive an intertting lug 9 formed on the opposing end of the rim portion 1, the spaced limbs of the bifurcation and also the lug being drilled to receive a hinge pin loriveted over atits ends. Moreover, the opposite ends of the rim portions 4 and 1 `are provided, in accordance with normal practice, with spikes I I and I 2 arranged to engage in holes or recesses I3 and I4 respectively upon closure of the roll. The opposite ends of the strip abrasive cloth or paper (not shown) are impaled upon and retained by the said spikes.

- The outer side of the hub` 5 is formed integrally with a laterally extending lug or ear I5 which is longitudinally bored at I6, tangentially with respect to the hub, to receive a slidable latch member I1. The bore I6 is closed at its inner end. The latch member I1 is fashioned from a short length of steel rod of circular cross-section and at its outer, i. e. operative, end is formed with a protruding single tooth I8. To maintain it in its correct position angularly within the bore I6, the slidable latch member I1 is provided with a lateral pin I9 arranged, as shown in Figures 2 and 3, to work in a guide slot formed in the lug or ear I5. The inner end of the latch member I1,is axially recessed to accommodate one end of a compression spring 2| the opposite end of which is arranged to bear on the opposing closed end of the bore I6. The spring 2| therefore normally urges the tooth I 8 into its fully projected position shown in Figures 1, 2 and 3, and depression ofthe latch member I1 takes place against the spring action. For co-operation with the toothed latch member I1 there is provided a complementarily toothed latch member 22 which is xecLe. g. by rivets 23, to the hinged part 2. The said member 22 is made of hardened metal and is formed with circumferentially spaced front and rear catch teeth 24 and 25 respectively. Thus, when closing the roll by movement of the hinged part 2 towards the main body part I, the front catch tooth 24 will rst snap into engagement with the tooth I8 to hold the roll partially closed, such engagement being permitted by relative movement of the slidable latch member I1 first inwardly against, and then outwardly under,

the action of the spring 2|, whereupon the rear catch tooth 25 will similarly snap into engagement with the tooth I8 securely to lock the part 2 in its fully closed position. In short, the closure of the roll is eiected in two stages, this being advantageous in so far as it enables the operator,Y

atthe termination of the first stage, to pause and,

with the roll held partly open, finally check thetting and alignment of the strip abrasive cloth the hinged part 2 and in turn permit the roll to be opened, as occasion demands, there is provided, in accordance with the characteristic .feature of this invention, a bell crank lever 26 which is fulcrumed upon a screw 21 screwed into a laterally protuberant boss 28 on the hub 5. The lever 26 is disposed in a plane at right angles to the side cover 6. The inner arm 29 of the said bell crank lever 26 is furnished with a cylindrical stud 30 (or a roller) which projects inwardly from the side of the lever through a slot 3I formed in the wall of the longitudinally bored lug or ear I5 and thence into a transverse recess 32 cut in the adjacent side of the slidable latch memberl I1. The arm 29 is movable up and down with arecess 33 formed in the side of the lug or ear I5. The outer arm 34 of the bell crank lever 26 is formed'integrally with a push button 35 arranged to be located in a circular hole 36 (see Figures 2 and 4) formed in Va side cover plate 31. The plate 31 is centrally dished and is removably secured to the outer end of the hub 5 by means of screws 38(Figure 4). The push button 35 lies practically flush withthe outer face of the side cover plate 31. By subjecting the push button to lateral pressure, inwardly, by the thumb or linger, the inner arm 2,9 of the bell crank lever is caused to press, through the medium of the stud 30, upon the slidable latch mem. ber I1 which latter as a consequenceiswithdrawn from engagement with the latch member 22 against the action of the compression spring 2|. Conversely, upon release of the push button 35, the slidable latch member I1 will automatically. resume its projected position under the reaction of the compressed spring and the bell crank lever will simultaneously be restored to its normal in-l operative position shown in Figures 2 and 3.

The roll is completed, in the customary manner, by the application theretov of a band of felt 39 which may conveniently be glued or otherwise suitably combined with an inner band 40 of leather which isv in turn riveted to a thin steel strip 4I. The opposed ends of the .said

V strip are turned inwardly, as depicted in Figure 5, toprovide lugs42( which are formedwith holes 43 corresponding in position with the spikes II and I2 and the holes or recesses I3 and I4. The strip abrasive cloth or paper is placed around the felt 39 and is held by the spikes.

Now, before theends of theabrasive strip can be impaled ,upon the spikes II and I2, these ends must, of course, first be turned down over the ends of the felt 39 to oppose the aforemenf' tioned lugs 42. If, as sometimes happens, the` abrasive strip is somewhat wider than the rimof the roll, it would, unless special provision were:

made, be diflicult, if not impossible, satisfactorily to tuck the ends of the strip down between the side cover 6 and the cover plate 31 at the location concerned. With a view to facilitating the turning down of theV ends of an abrasive strip,l

theside cover 6 and the cover plate 31 are cut away as indicated at 44 and 45 in Figures 3 and 4 respectively; t j

What I claim then is:

1. A roll of the kind herein referred to which includes, incombination, a` part formed with a hub, a cover portion which iscombined with the,` said hub at one side of the roll, Va separate andremovable cover plate lsecured to thesaid Vpart:

at the opposite side of the roll, another part which is hinged to the first mentioned part and l is movable between the cover portion and the cover plate, the said two parts being formed with complementary rim portions which, upon the parts being brought together, provide a continuous circular rim adapted for the support of a band of material for use in the performance of a iinishing operation, and releasable latch mechanism for locking the said two parts together in the closed position for use, said mechanism comprising a pair of opposed engageable latch members which are carried by the respective roll parts and formed with complementary angular teeth, one of said latch members being movably mounted upon the hubbed roll part for movement relatively to the opposed latch member xed on the other part, and a latch actuating member which is carried by the hubbed part and is operable at one side of the roll for action upon the movable latch member to withdraw the same and thereby effect release of the hinged part of the roll.

2. A roll of the kind herein referred to which includes, in combination, a part formed with a hub, a cover portion which is combined with the said hub at one side of the roll, a separate and removable cover plate secured to the said part at the opposite side of the roll, another part which is hinged to the first mentioned part and is movable between the cover portion and the cover plate, the said two parts being formed with complementary rim portions which, upon the parts being brought together, provide a continuous circular rim adapted for the support of a band of material for use in the performance oi a finishing operation, and releasable latch mechanism for locking the said two parts together in the closed position for use, said mechanism comprising a pair of opposed engageable latch members which are carried by the respective roll parts and formed with complementary angular teeth, one of said latch members being mounted for movement slidably, under spring control, in a direction tangential with respect to the hub and relatively to the opposed latch member fixed on the other part, a latch actuating member which is carried by the hubbed part of the roll and is operable for action upon the movable latch member to withdraw the same and thereby effect release of the hinged part of the roll, and, for operating the latch actuating member, a push button arranged to work Within an opening formed in the side cover plate.

3. A roll according to claim 2, wherein the slidable latch member is mounted for movement longitudinally within a, bored lug extending laterally from the hub and is controlled by a compression spring interposed between its inner end and the opposed end of the bore which is closed.

4. A roll according to claim 2, wherein the operative end of the slidable latch member is formed with a single tooth adapted for co-operation with a toothed member which is fixed to the hinged part of the roll and is provided with circumferentially spaced catch teeth, for the purpose herein described.

5. A roll of the kind herein referred to which includes, in combination, a part formed with a hub, a cover portion which is combined with the said hub at one side of the roll, a separate and removable cover plate secured to the said part at the opposite side of the roll, another part which is hinged to the lrst mentioned part and is movable between the cover portion and the cover plate, the said two parts being formed with complementary rim portions which, upon the parts being brought together, provide a continuous circular rim adapted for the support of a band of material for use in the performance of a iinishing operation, and releasable latch mechanism for locking the said two parts together in the closed position for use, said mechanism comprising a pair of opposed engageable latch members which are carried by the respective roll parts and formed with complementary angular teeth, one of said latch members being mounted for movement slidably, under spring control, in a direction tangential with respect to the hub and relatively to the opposed latch member fixed on the other part, a bell crank lever which is fulcrurned on the' hubbed part of the roll, a stud on one arm of said lever, said stud being located in a transverse recess formed in the slidable latch member and thereby adapted for action upon the slidable latch member, upon appropriate operation of the bell crank lever, to withdraw the said latch member and thereby effect release of the hinged part of the roll, and, for operating the bell crank lever,

a push button which is attached to the other arm of the lever and is arranged to work within an opening formed in the side cover plate.

6. A scouring roll comprising, in combination, a part formed with a hub having a laterally extending bored lug, a cover portion which is combined with the said hub at oneI side of the roll, a separate and removable cover plate having an aperture ormed therein and secured to the said part at the opposite side of the roll, another part which is hinged to the first mentioned part and is movable between the cover portion and the cover plate, the said two parts being formed with complementary rim portions which, upon the parts being brought together, provide a continuous circular rim adapted for the support ci a band of abrasive material for use in scouring operations, a latch member which is mounted for longitudinal sliding movement Within the aforesaid bored lug in a direction tangential with respect to the hub and is formed at its operative end with a single tooth, a compression spring interposed between the inner end of the slidable latch member and the opposed end of the bore which is closed, a further toothed member which is provided with circumferentially spaced catch teeth and is fixed to the hinged part of the roll, a bell crank lever which is fulcrumed on the hubbed part of the roll, a stud on one arm of said lever, said stud being located in a transverse recess formed in the slidable latch member and thereby adapted for action upon the slidable latch member, upon appropriate operation of the bell crank lever, to withdraw the Said latch member and thereby effect release of the hinged part of the roll, and, for operating the bell crank lever, a push button which is attached to the other arm of the lever and is arranged to work within an opening formed in the side cover plate.

J OHN HUGH FRANKLET.

REFERENCES CTED The following referenIce-s are of record in the rile of this patent:

UNITED STATES PATENTS Number Name Date 209,871 Dillon et a1 Nov. 12, 1878 $927,926 Ballard July 13, 1909 1,013,726 Bates Jan. 2, 1912 1,030,538 Reed June 25, 1912 

